Auth bypass in Leantime
CVE-2026-15510
A vulnerability was found in Leantime up to 3.8.0. Affected is the function Setting::saveSetting of the component API. The manipulation results in improper authorization. The attack may be performed from remote. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.003 (26.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 26.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Leantime — versions 3.0, 3.1, 3.2
Weakness classification (CWE)
References
- vuldb.com/vuln/377839 (technical-description, vdb-entry)
- vuldb.com/vuln/377839/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-15510 (third-party-advisory)
- vuldb.com/submit/846171 (third-party-advisory)
- bytium.com/insights/leantime-3-8-0-broken-access-control (exploit)
Frequently asked questions
- What is CVE-2026-15510?
- CVE-2026-15510 is a medium-severity vulnerability in Leantime, classified under Incorrect Privilege Assignment. CVSS score: 6.3/10. Published 2026-07-12.
- How severe is CVE-2026-15510?
- Medium severity. CVSS v3 base score is 6.3 out of 10.